Grey Mare's Tails

So, you know how it is. You haven't been out for a serious walk for years. You see a local walking guide, crammed full of interesting walks. You buy it, and just to show you're not over the hill you pick one that is at least eight miles long. Well you do if your off your head like me. By the time I got towards the end of the walk, I discovered that I really was over the hill - several in fact! When I saw the signs pointing towards this waterfall, the path seemed to disappear down for ages through woods. I was in two minds whether to go and see them at all. In the end I was glad I did.